In 1926, a cork center of the baseball was added.In 1931, a thin layer of rubber wrapped the cork center, slighting deadening the ball. The seams of the baseball were also raised to enable to the pitcher to get a better grip on the ball for better rotation on breaking balls.

The major components of a baseball are manufactured in the United States, such as the cork, rubber, yarn, stitches, and cowhide, and then are assembled in Turrialba, Costa Rica. Baseballs have been stitched in Costa Rica since 1990.

According to The New York Times, the average baseball worker in Costa Rica makes $2,750 a year.